Patents by Inventor Florian Schwabe

Florian Schwabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Circuit for operating a fluorescent lamp
    Patent number: 5436527
    Abstract: In a circuit for operating a fluorescent lamp with controllable luminance, with the fluorescent lamp comprising a discharge path and heater coils, the discharge path is connected through a transformer to a controllable alternating current source. The current through the heater coils is preferably controllable in such fashion that the sum of the current through the discharge path and through the heater coils remains essentially constant.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: July 25, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Winfried Koenig, Florian Schwabe, Reinhold Fiess, Peter Scharlach